Different Energy Sources
Different energy sources supply us with the power we need to live and work. These include wind, solar geothermal, biomass, as well as geothermal sources. In addition to being the primary source of electricity they can also be used for transport and heating. The biggest issue with these energy sources is that they may cause greenhouse gas emissions if they are burned to generate electricity. This is why there is a need for more green energy sources.
Fossil fuels are the most widely used type of energy. They include oil, coal and natural gas. They were created millions of year ago when prehistoric animals and plants died and were then buried under layers of sedimentary rocks. In the right conditions, these fossil fuels were gradually transformed into carbon-rich substances that, when burnt generate energy. These fossil fuels will not be renewable because they will be depleted in our lifetimes or over the course of many lifetimes.
Renewable energy sources are continuously replenished. The primary renewable energy source is sunlight, which supplies warmth and light. We use it to power our homes and businesses as well as to drive our cars. Wind is a different renewable energy source that generates electricity through spinning turbines. Since the first time people realized how to harness wind we have been utilizing it for millennia. We utilize biological processes to produce ethanol (a alcohol-like substance that is clear and transparent that can be used as fuel) from waste and crops.
In the list of sources hydropower is the most significant renewable energy source in the United States, though wind and biofuels are likely to become the dominant source in the near future. Hydropower draws on nature’s hydro cycle to harness the power of flowing water, which is used in turn to generate electricity.